Squirrel-proof bird feeder



FIG. 1 is a front perspective view of the squirrel-proof bird feeder of this invention;

FIG. 2 is a top view of the squirrel-proof bird feeder of FIG. 1;

FIG. 3 is a front view of the squirrel-proof bird feeder of FIG. 1;

FIG. 4 is a typical side view of the squirrel-proof bird feeder of FIG. 1;

FIG. 5 is a back view of the squirrel-proof bird feeder of FIG. 1; and,

FIG. 6 is a bottom view of the squirrel-proof bird feeder of FIG. 1. 

The ornamental design for a squirrel-proof bird feeder, as shown and described. 